diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index bd58626868be..719e31a67993 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -8750,6 +8750,13 @@ static int need_active_balance(struct lb_env *env) if (voluntary_active_balance(env)) return 1; + if ((capacity_of(env->src_cpu) < capacity_of(env->dst_cpu)) && + env->src_rq->cfs.h_nr_running == 1 && + cpu_overutilized(env->src_cpu) && + !cpu_overutilized(env->dst_cpu)) { + return 1; + } + return unlikely(sd->nr_balance_failed > sd->cache_nice_tries+2); }